{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["enabling technology", "application", "process characterization", "engineering feature", "material", "machine or equipment"], "input": "An innovative additive manufacturing ( AM ) system using low power pulsed laser assisted MIG arc welding ( L-M ) was proposed to manufacture metal products ."}
{"enabling technology": [], "application": [], "process characterization": [], "engineering feature": [], "material": [], "machine or equipment": []}